It will have some effect, but it is not clear exactly what. Probably the difference in 1.5 and 3T will be bigger. See the paper by Jorge Jovicich for more info about the diffs between 1.5 and 3T. You should make sure to have a balanced design if you want to publish it.
On 8/16/16 4:52 PM, Mahmoudi, Fariborz wrote:
Dear Friends,
I have used a mixed set of images from 1.5T and 3.0T scanners with anisotropic voxel size in my study. I used Freesurfer tools for converting them to isotropic voxel size before segmentation and reconvert to initial state after segmentation. It is appreciated if someone let me know using such a mixed anisotropic data causes any side effect in the volume measurement or not. I will be also thankful if you could introduce a reference that discusses the effect.
Best Regards, Fari
CONFIDENTIALITY NOTICE: This email contains information from the sender that may be CONFIDENTIAL, LEGALLY PRIVILEGED, PROPRIETARY or otherwise protected from disclosure. This email is intended for use only by the person or entity to whom it is addressed. If you are not the intended recipient, any use, disclosure, copying, distribution, printing, or any action taken in reliance on the contents of this email, is strictly prohibited. If you received this email in error, please contact the sending party by reply email, delete the email from your computer system and shred any paper copies.
Note to Patients: There are a number of risks you should consider before using e-mail to communicate with us. See our Privacy & Security page on www.henryford.com for more detailed information as well as information concerning MyChart, our new patient portal. If you do not believe that our policy gives you the privacy and security protection you need, do not send e-mail or Internet communications to us.
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer